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Post date	Users	Rates	Content
2019-02-23	VanithaE	72	Check this topic
2019-03-04	VanithaE	72	Check this topic

Topic title: In the past 100 years there have been many inventions such as antibiotics airplanes and computers. What are the greatest inventions of the 20th century among medicine, aero plane and computers, why?

Topic category: PTE_Academic